Denitration catalyst for increasing specific area and preparation method
A technology of denitrification catalyst and specific surface area, which is applied in the direction of chemical instruments and methods, physical/chemical process catalysts, heterogeneous catalyst chemical elements, etc., can solve the problem of unbalanced active centers, etc., to achieve improved efficiency, high catalyst performance, and improved The effect of catalyst strength
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Embodiment 1
[0046] Add 15g of coconut shell activated carbon into the glucose solution, mix well and beat to form a slurry (a), which will contain TiO 2 500g of titanyl sulfate is dissolved in sulfuric acid solution to form TiO 2 For 35g / L solution (b), will contain WO 3 A total of 22.5g of ammonium paratungstate solution was mixed with (a) and (b) materials, and after 2 hours of mechanical stirring, ammonia water was gradually added to adjust the pH value to 9.0. After the precipitation was complete, filter and wash; then the washed materials were prepared with deionized water. into a slurry with a water content of 60%, adding V 2 o 5 A total of 4.5g of ammonium metavanadate solution was stirred mechanically for 1.5h, and after direct drying, it was roasted at 620°C for 4h in a nitrogen atmosphere; after roasting, the powder was mixed with SiO 2 A total of 7.5g of sodium silicate was made into a slurry with a water content of 30%. After stirring, 4g of scallop powder was added, stirre...
Embodiment 2
[0050] Add 20g of wood-based activated carbon into the sucrose solution, mix thoroughly and beat to form a slurry (a), which will contain TiO 2 500g of titanyl sulfate is dissolved in sulfuric acid solution to form TiO 2 For 35g / L solution (b), add (a), (b) containing WO 3 A total of 22.5g of ammonium paratungstate solution, after mechanical stirring for 1.5h, gradually add ammonia water to adjust the pH value to 9.5, after the precipitation is complete, filter and wash; then use deionized water to make a slurry with a water content of 50%, and add with V 2 o 5 A total of 2.5g of ammonium metavanadate solution was stirred and ultrasonically oscillated for 1.5h. After direct drying, it was roasted at 600°C in a nitrogen atmosphere for 6h; after roasting, the powder was mixed with SiO 2 5g of sodium silicate was prepared into a slurry with a water content of 35%. After stirring, 2.5g of scallop powder was added, stirred for 30 minutes, sealed and left for 15 hours, dried, and...
Embodiment 3
[0054] Add 20g of wood-based activated carbon into the sucrose solution, mix thoroughly and beat to form a slurry (a), which will contain TiO 2 500g of metatitanic acid is dissolved in sulfuric acid solution to form TiO 2 For 35g / L solution (b), add (a), (b) containing WO 3 A total of 20g of ammonium paratungstate solution, after mechanical stirring for 1 hour, gradually add ammonia water to adjust the pH value to 9.5, after the precipitation is complete, filter and wash; then use deionized water to make a slurry with a water content of 45%, and add V 2 o 5 A total of 5g of ammonium metavanadate solution was stirred and ultrasonically oscillated for 1h. After direct drying, it was roasted at 550°C for 6h; after roasting, the powder was mixed with SiO 2 5g of sodium silicate was used to make a slurry with a water content of 30%. After stirring, 3g of urea was added, stirred for 30 minutes, sealed and left for 20 hours, dried, and roasted at 550°C for 5 hours to obtain a denit...
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